48 JOURNAL OF PROCEEDINGS. 
mense body of fluid or liquid substance, perhaps once fiery 
vapor cr gases. Passing through millions of ages it formed a 
crust of Earth wherein we are perched like so many pigmies. 
Those belts or zones of Jupiter are clouds of vapor, be- 
neath which there is intense heat and fire. This vapor and~ 
fluid state made Jupiter much lighter than the Earth. It is 
reckoned that 340 million years were spent in the solidifying 
and cooling the Earth, and Jupiter being much larger, will take 
2\% billions of years. 
If then the Earth will only cease to exist when Jupiter is 
solidified and ready to be populated, the end of the world is yet 
far distant. 
The terrible convulsions and motion of the belts of Jupiter, 
which indicates storms with hurricanes at 200 miles an hour, 
indicates an internal heat. The heat of the Sun on our atmos- 
phere, which causes our storms, cannot be great enough on 
Jupiter to cause those great hurricanes. [Lantern.] 
Again, this heat is shown in red spots, one particularly, 
which has been constantly visible since 1878, 26,000 miles long 
and 8,000 miles wide. This is a certain sign that there is fire. 
But it is also surmised that it is the formation of a continent 
which would blanket our whole Earth round and round and 
extend 4,000 miles to either side of our Equator. 
If the spirit of adventure should stimulate any of you, you 
could closely watch its final formation, then go and conquer to 
yourselves a vast empire indeed. 
Jupiter is not self-luminous like the Sun, but merely re- 
flects the light of the Sun as does the Earth. What a magnifi- 
cent mirror to become the giant of the starry heavens. 
That Jupiter is not luminous is proven by its satellites, as 
we will see. 
Then Jupiter has satellites or Moons. When I first 
studied astronomy in 1884 Jupiter had only, or was supposed to 
have only, four satellites, discovered by Galileo, 1610. Since 
then Mr. E. E. Barnard, of Mount Hamilton, has found a fifth, 
SG you see astronomy is not at a standstill. 
Those satellites which offer Jupiter their services, as the 
